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Is Sunday 4 May 2025 a US federal holidays business day?

No: Sunday 4 May 2025 is not a US federal holidays business day, because US federal holidays is closed at weekends; US federal holidays reopens on Monday 5 May 2025 (Zeitwide release 2026.11.04.1).

28 days of US federal holidays around Sun 4 May 2025

US federal holidays, Sun 27 Apr 2025 to Sat 24 May 2025
CalendarSun 27 Apr 2025Mon 28 Apr 2025Tue 29 Apr 2025Wed 30 Apr 2025Thu 1 May 2025Fri 2 May 2025Sat 3 May 2025Sun 4 May 2025Mon 5 May 2025Tue 6 May 2025Wed 7 May 2025Thu 8 May 2025Fri 9 May 2025Sat 10 May 2025Sun 11 May 2025Mon 12 May 2025Tue 13 May 2025Wed 14 May 2025Thu 15 May 2025Fri 16 May 2025Sat 17 May 2025Sun 18 May 2025Mon 19 May 2025Tue 20 May 2025Wed 21 May 2025Thu 22 May 2025Fri 23 May 2025Sat 24 May 2025
US federal holidaysUS federal holidays closed for the weekend Sun 27 Apr 2025US federal holidays open Mon 28 Apr 2025US federal holidays open Tue 29 Apr 2025US federal holidays open Wed 30 Apr 2025US federal holidays open Thu 1 May 2025US federal holidays open Fri 2 May 2025US federal holidays closed for the weekend Sat 3 May 2025US federal holidays closed for the weekend Sun 4 May 2025US federal holidays open Mon 5 May 2025US federal holidays open Tue 6 May 2025US federal holidays open Wed 7 May 2025US federal holidays open Thu 8 May 2025US federal holidays open Fri 9 May 2025US federal holidays closed for the weekend Sat 10 May 2025US federal holidays closed for the weekend Sun 11 May 2025US federal holidays open Mon 12 May 2025US federal holidays open Tue 13 May 2025US federal holidays open Wed 14 May 2025US federal holidays open Thu 15 May 2025US federal holidays open Fri 16 May 2025US federal holidays closed for the weekend Sat 17 May 2025US federal holidays closed for the weekend Sun 18 May 2025US federal holidays open Mon 19 May 2025US federal holidays open Tue 20 May 2025US federal holidays open Wed 21 May 2025US federal holidays open Thu 22 May 2025US federal holidays open Fri 23 May 2025US federal holidays closed for the weekend Sat 24 May 2025
  • Open
  • Closed
  • Weekend
  • Holiday on a weekend

Other calendars on Sun 4 May 2025

Sunday 4 May 2025 on 7 other calendars
CalendarStatusWhy
Germany: nationwide public holidays (DE)No dataOutside this calendar's sources
T2 (TARGET RTGS) (EU-T2)No dataOutside this calendar's sources
CHAPS (GB-CHAPS)CHAPS closed for the weekend Sun 4 May 2025Weekend
England and Wales bank holidays (GB-EAW)England and Wales bank holidays closed for the weekend Sun 4 May 2025Weekend
FedACH Services (US-FEDACH)No dataOutside this calendar's sources
FedNow Service (US-FEDNOW)FedNow Service open Sun 4 May 2025Business day
Fedwire Funds Service (US-FEDWIRE)No dataOutside this calendar's sources

Sources

No entry decides this date, so US federal holidays's weekend rule does. US federal holidays is closed every Saturday and Sunday.

Zeitwide release 2026.11.04.1. Evidence and signed receipt for US federal holidays on Sun 4 May 2025

US federal holidays revision 44, published .

Cite this answer
Zeitwide (2026). US-FEDERAL on 2025-05-04. Release 2026.11.04.1. https://zeitwide.com/calendars/US-FEDERAL/2025-05-04

Questions people ask

When does US federal holidays reopen after Sunday 4 May 2025?

US federal holidays reopens on Monday 5 May 2025.

Which days is US federal holidays closed?

US federal holidays is closed every Saturday and Sunday. It also closes on the holidays published by U.S. Office of Personnel Management.

Where does this answer come from?

The calendar's weekend rule and no closure for it in U.S. Office of Personnel Management, in Zeitwide release 2026.11.04.1.

The same answer from the API

curl https://api.zeitwide.com/v1/calendars/US-FEDERAL/days/2025-05-04

{
  "date": "2025-05-04",
  "is_business_day": false,
  "dataset_release": "2026.11.04.1"
}

Agents get it from the is_business_day MCP tool. The developer quickstart covers keys, MCP and webhooks